djvu | e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da

General

Target

e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
Size

824KB
MD5

027b074862c64f786cb718da334ba19b
SHA1

8dc271f9adc11cb5d4ac7d1da1a00656aeeb0326
SHA256

e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da
SHA512

2a2af6a19e597624767fc797928767d66e7c7cf9305b447256ac481819d236a103325294dc74d91222801c5ce20215da2c19e3c31dd4d2cc09ab25cdc98ee962
SSDEEP

12288:TuGj8H2ze2Ckt2m2YjQWUvFbuu1LrJKpayANTPazV3awg5NEWo:TuG2262Ci2/pWUvFbf1Ldk0zaQ5To

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://sajdfue.com/test2/get.php

Attributes

extension
.uazq
offline_id
Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://sajdfue.com/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/df01994dd8d37c2c33469922f8e7155a20240402134014/fd95b0 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0860PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral1/memory/2976-2-0x0000000004A00000-0x0000000004B1B000-memory.dmp	family_djvu
behavioral1/memory/3988-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3988-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3988-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3988-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3988-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3180-18-0x0000000004890000-0x000000000492A000-memory.dmp	family_djvu
behavioral1/memory/2304-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2304-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2304-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2304-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2304-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2304-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2304-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2304-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2304-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2304-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2304-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1048	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\48b33a3b-d97e-4f06-9042-7232bb1d0a3b\\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe\" --AutoStart"	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
18	api.2ip.ua
19	api.2ip.ua
25	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2976 set thread context of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 3180 set thread context of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3988	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
3988	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
2304	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
2304	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2976 wrote to memory of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 2976 wrote to memory of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 2976 wrote to memory of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 2976 wrote to memory of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 2976 wrote to memory of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 2976 wrote to memory of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 2976 wrote to memory of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 2976 wrote to memory of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 2976 wrote to memory of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 2976 wrote to memory of 3988	2976	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	88
PID 3988 wrote to memory of 1048	3988	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	89
PID 3988 wrote to memory of 1048	3988	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	89
PID 3988 wrote to memory of 1048	3988	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	89
PID 3988 wrote to memory of 3180	3988	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	92
PID 3988 wrote to memory of 3180	3988	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	92
PID 3988 wrote to memory of 3180	3988	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	92
PID 3180 wrote to memory of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95
PID 3180 wrote to memory of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95
PID 3180 wrote to memory of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95
PID 3180 wrote to memory of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95
PID 3180 wrote to memory of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95
PID 3180 wrote to memory of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95
PID 3180 wrote to memory of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95
PID 3180 wrote to memory of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95
PID 3180 wrote to memory of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95
PID 3180 wrote to memory of 2304	3180	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	95

C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
"C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
  "C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3988
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\48b33a3b-d97e-4f06-9042-7232bb1d0a3b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1048
- - C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
    "C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3180
  - - C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
      "C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
1KB

MD5
66b9229d8e5c4a265f90090982f160e9

SHA1
90f248d1ad914909a753c75938b8cf35774a4111

SHA256
16f1125215debd65f73c0e73a6d207b912bc74c4dc4ab6caec64fc177d4b25b5

SHA512
e3f4cf6e8d30ddef23f9a9170eb22a00070f9aafaf0f10b196121b6dcf03be8d8d9734dd67e98bd0915087f048e779fca61959f2e646700d278b1e8fd72d37c1

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
410B

MD5
f2865a8713f0d3a5698f15981d04f11f

SHA1
9c34085ed5f99c51c62ffab0b6c3da49cc694f5a

SHA256
7406e653bae0dbe10081c27546fda97844196fafd89cad58bea04a7171560b43

SHA512
5aede36a34a4ad7a13b12f65a476dfdb41c312810a782be1c01a2404a0e3f65e78b14fc39dff48481f47fd48aeebed23ae51b184686a71df7ee1fd4dd95fcb38

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
392B

MD5
3efae7d3699f5ee1ea39edffc9a05630

SHA1
efe028912d0546509049c4729832cfd134c191c6

SHA256
2f51b9e6e7aa4ee6fae176dd5f2cfa9ae149ef515e746dbc9f1f2fc86595d396

SHA512
bcc986e2339082da98aaac050dc5091ed392990b8d1968ea2dac18d71947bc4715f6fa07387fe5884b17458e0376dcf40b82fa6d740139bf4de23c6ae80e53a2

Download Submit
C:\Users\Admin\AppData\Local\48b33a3b-d97e-4f06-9042-7232bb1d0a3b\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe

Filesize
824KB

MD5
027b074862c64f786cb718da334ba19b

SHA1
8dc271f9adc11cb5d4ac7d1da1a00656aeeb0326

SHA256
e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da

SHA512
2a2af6a19e597624767fc797928767d66e7c7cf9305b447256ac481819d236a103325294dc74d91222801c5ce20215da2c19e3c31dd4d2cc09ab25cdc98ee962

Download Submit
memory/2304-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2304-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2304-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2304-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2304-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2304-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2304-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2304-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2304-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2304-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2304-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2976-2-0x0000000004A00000-0x0000000004B1B000-memory.dmp

Filesize
1.1MB

Download
memory/2976-1-0x0000000004940000-0x00000000049E1000-memory.dmp

Filesize
644KB

Download
memory/3180-18-0x0000000004890000-0x000000000492A000-memory.dmp

Filesize
616KB

Download
memory/3988-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3988-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3988-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3988-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3988-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads